/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package web;

import ejb.NewsTableFacadeRemote;
import ejb.NewsTable;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Nairo
 */
@WebServlet(name = "PostMessage", urlPatterns = {"/PostMessage"})
public class PostMessage extends HttpServlet {
    @EJB
    private NewsTableFacadeRemote newsTableFacade;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        
        int i=0;
        String title=request.getParameter("title");
        String body=request.getParameter("body");
        if ((title!=null) && (body!=null)) {
            // search the number of news
            i= newsTableFacade.count();
            // calculate the id for the news to insert
            i=i+1;
            // create the news (detached entity)
            NewsTable n=new NewsTable(i, title, body);

            //entity must persist in the persistence unit via SessionBean
            newsTableFacade.create(n);
            response.sendRedirect("ListNews");
        }

        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /*
             * TODO output your page here. You may use following sample code.
             */
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet PostMessage</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet PostMessage at " + request.getContextPath() + "</h1>");
            
            out.println("<form>");
            out.println("Title: <input type='text' name='title'><br/>");
            out.println("Message: <textarea name='body'></textarea><br/>");
            out.println("<input type='submit'><br/>");
            out.println("</form>");

            out.println("</body>");
            out.println("</html>");
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
